<div v-if="isShow">
  <div class="rong-dialog-shadow-layer"></div>
  <div class="rong-dialog rong-dialog-create-db">
    <h3>新建白板</h3>
    <ul class="rong-dialog-wb-list">
      <li @click="createBlankWb">
        <div class="rong-dialog-wb-icon"></div>
        <span>空白白板</span>
      </li>
    </ul>
    <a class="rong-dialog-close" @click="cancel">✕</a>
  </div>
</div>